London couple design Katy Perry's electric gown

London couple design Katy Perry's electric gown

London couple design Katy Perry's electric gown

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Katy Perry

Glowing endorsement: Katy Perry in the CuteCircuit LED dress she wore at the Metropolitan Museum of Art’s Costume Institute gala in New York

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Francesa Rosella and Ryan Genz

Big break: Francesa Rosella and Ryan Genz

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Francesa Rosella and Ryan Genz's Hug T-shirt

Francesa Rosella and Ryan Genz's Hug T-shirt that can send a long-distance embrace

Glowing endorsement: Katy Perry in the CuteCircuit LED dress she wore at the Metropolitan Museum of Art’s Costume Institute gala in New York

The dress that Katy Perry wore to light up the red carpet is about to spark a bright future for its London-based designers.

The singer, 25, stole the show and won worldwide media coverage with her CuteCircuit electric gown at the Metropolitan Museum of Art's Costume Institute gala in New York.

Shoreditch-based couple Francesca Rosella and Ryan Genz created the dress, which was illuminated with LED lights, after the singer's stylist saw one of their designs at a museum.

Ms Rosella said: "Johnny (Wujek) saw our 'galaxy' dress and wanted us to make something similar for Katy. It's taken a few months with sketches and measurements sent back and forth, but the result and the reaction have been amazing.

"We've been inundated with phone calls and messages and are just catching up with all the press coverage the dress has received."

The couple, who set up their company five years ago after studying at the Interaction Design Institute Ivrea in Italy, met Perry for the first time when they flew out to New York at the weekend for the final fitting of the dress.

"We wanted to create a more wearable version of the dress for her. And we built in a special button hidden in the decolletage so she could control the exact moment she wanted it to light up." The couple, who work out of their loft apartment, have been pioneers in the field of wearable technology producing such innovative items as the Hug T-shirt.

Wearers are able to send a long-distance hug to someone in another country by squeezing the T-shirt which contains heat and vibration sensors. Another of their creations is the Twinkle T-shirt, which lights up according to the wearer's movement.

Ms Rosella said: "We are just about to go on sale in our first store in San Francisco and hope to be in stores in the UK soon."